(19)

(11)

EP 3 117 067 A2

(12)

(88) Date of publication A3: 01.10.2015 (43) Date of publication: 18.01.2017 Bulletin 2017/03 (21) Application number: 14803224.6 (22) Date of filing: 25.11.2014

(51) International Patent Classification (IPC):  E21B 17/18(2006.01) E21B 17/10(2006.01) E21B 34/06(2006.01) E21B 21/12(2006.01) E21B 21/10(2006.01) (86) International application number: PCT/GB2014/053471 (87) International publication number: WO 2015/079212 (04.06.2015 Gazette 2015/22)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 27.11.2013 GB 201320961 (71) Applicant: Shearer, David Sutton Coldfield, West Midlands B75 6PG (GB)	(72) Inventor: Shearer, David Sutton Coldfield, West Midlands B75 6PG (GB) (74) Representative: Sessford, Russell  Forresters Skygarden Erika-Mann-Strasse 11 80636 München 80636 München (DE)